what size tank is this for?
21912
I have one in my 50 gal tank and it keeps up beautifully. I also have one in with my turtles and they are in about 20 gal of water in a 100 gal tank.
21913
I am not sure. My tank is 3 gallons. I put in the filter at night. I was not sure what happened but in the morning the water water was cloudy and my beta fish was sick after that. I did not want to take any chance to let my beta fish got worse so took out the filter and never used the filter again.
21914
I have it in a 10 gal Molly tankI would not use it for anything more then 10 gal
1625505
I couldn't find one that fits like the add picture. I use a 2.5 gal tank purchased at the local auto parts store. Looks like this one at lowes. There may be better cans out there.http://www.lowes.com/ProductDisplay?partNumber=173395-1362-80010&langId;=-1&storeId;=10151&productId;=3126285&catalogId;=10051&cmRelshp=req&rel;=nofollow&cId;=PDIO1
1938186
This top is for a 46 gallon Bow front tank by Marineland, That's what my tank is and it fits great! I broke mine and this is the only place to get it.
65365
I am using it in a 50 gallon tank. I think the next size would be best if going any larger than this.
1356303
I don't recommend 30 Gallons tank. I bought this for 10 gallon tank. It was not enough.And I found a problem. Connection is weak.(from light parts to AC adaptor)
1907493
Our tank is also a 47 gallon approx 18"x20"x30" and it fit perfectly. It leaves a gap for a HOB filter with a plastic piece you cut to fit around it.
2178911
The one that I purchased was for a two ft tank but it fit perfectly. I suspect the one for a 3 ft tank will fit as well.
1888680
I would get the biggest one that fits that tank....I have been satisfied with the large unit I have. Built well enough.. Qapla
437187
Likely much too big. Try a turkey master. Works well on tanks up to 10 gallons.
226431
It only fits tanks that are a foot wide and I'm not the seller I'm just some who bought this and absolutely loves it. In the description of this item they tell you it fits tanks up to 55 gallons. I don't know if the makers make ones for tanks bigger than that.
354129
Hello P Smith, I apologize, I was on vacation and could not get to your email. Are you still looking for the size of the tank ?
2262738
My tank is 18.5 wide and 20.5 long I measure from the outside of tank. Fill it up one gallon at a time then you will know what size tank you have..... :)
100249
I just measured my tank which is a D tank. Mine measures about 20 inches high and has a circumference of about 14 inches. There is not a lot of wiggle room but yours should fit without a problem.
253959
It fits perfectly into the upper ridge of my 10-gallon standard tank, and it definitely doesn't fit our 20 long. 20 long is a fairly standard size, though. I would filter for Marineland, and look for one specifically for a 20 long.
371372
my daughter has 2 tanks total on this....not sure the sizes.....one fits top shelf; 2nd one is a bit smaller and bottom is all of her aquatic needs.
1779585
you can use any size tank just depends on how much your pump will come on bigger tanks the pump comes on less small tanks more offten
2053083
It's for a 12 x 30 tank, but the measurements say 30.5 x 13.1 so it has a little wider and long to fit ontop of your tank! If it was the same exact measuremnts it wouldn't fit on it right. I bought this for my 29 gallon aquarium